Vauxhall ASTRA Owner's Manual page 40

Replacing battery in electronic key
Replace the battery immediately if the
system is no longer working properly or the
range of the remote control is reducing.
The need for a battery change is indicated
via InSP3 in the service display or, in
vehicles with check control 3, by an
appropriate message in the display. See
page 120.
To replace the battery, operate lock on
underside of electronic key and remove
cover by pushing gently forwards, see
Fig. 17037 T on page 37.
Push off cover with emblem on side
towards the outside using the buttons.
Replace battery, for battery type, see
page 345, pay attention to installation
position. Engage caps.
Remote control synchronisation
The remote control synchronises itself
automatically during every starting
procedure.
Fault in Open&Start system or remote
control.
If the central locking cannot be operated or
the engine cannot be started, the cause
may be one of the following:
z Electronic key out of reception range, or
out of range of remote control,
Keys, doors, windows, TwinTop
z Remote control battery voltage too low –
refer to text in previous columns for
instructions on how to change battery.
z Frequent, repeated operation of the
remote control outside the reception
range (e.g. too far from vehicle, remote
control is then no longer recognised).
z If the central locking system is
overloaded as a result of repeated
operation at short intervals. The power
supply is cut off for a brief period.
z Interference from higher-power radio
waves from other sources.
To eliminate the fault, change the position
of the electronic key or remote control or
change the battery in the remote control.
If the fault persists, contact a workshop for
assistance.
Emergency operation, see page 37.
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